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The Ontario Natural Building Coalition is an advocacy group of designers, builders & homeowners working to promote healthy, high performance natural building strategies in the construction industry.

Upcoming events

03 Apr 2020 6:00 PM • Camp Kawartha, 1010 Birchview Rd, Lakefield ON

More events...

Contact us to become one of our 2020 Natural Building Conference Sponsors:

Job Postings

Professional Members - Contact us to list job postings available within your company! View our current Job Postings

Find A Natural Building or Straw Bale Professional

View our Business Directory for a complete list of designers, builders and more

Straw Bale Apprenticeship Program

The ONBC in partnership with The Endeavour Centre is now offering a new Apprenticeship Program for Straw Bale Builders. Click here for our Program details.

Discussion Lists

Natural Homes For Sale

From time to time, homeowners must sell their beloved natural home. ONBC members can make their listings visible here, check out the current Homes For Sale Listings.

Self-Serve Membership


to edit your profile, change address, renew your membership

Annual Natural Building Conference

See photos of the 2018 conference.

Photos of the 2016 conference here.

Click here for photos of the 2015 conference.


Ontario Natural Building Conference - April 4 and 5, 2020

Our conference committee is working hard to make this year’s Annual Natural Building Conference a great success. The conference will take place on April 4 and 5, 2020 at Camp Kawartha, near Lakefield ON. Conference attendees can look forward to the same high caliber roster of presentations and activities that have marked the conference as one of the best natural building conferences in Ontario and beyond!

We are very excited to announce that this years keynote speaker will be the renowned architect, author, consultant, instructor and co-developer of the EcoNest house concept, Paula Baker-Laporte.
Paula has an extensive and dedicated career in the areas of environmentally sound and health enhancing architecture. She was selected as one of the top 10 green architects in the United States by Natural Home Magazine, and has been published extensively on the topics of healthy home design and construction. We look forward to having Paula join us at the conference!

This Year's Speakers and Topics Include:

  • Paula Baker-Laporte 
  • Annie Murphy & Jen Feigin - Creating Non-Toxic Trades: How-To Confront Offensive Talk
  • Melinda Zytaruk & Jeremy Clark- Scaling-up, Costs, Hurdles, Relationships
  • Matt Adams - What the Hell is Stopping Us from Integrated Project Delivery? 
  • Opportunities to Participate in Member Voted Break-out Sessions including, professional builders forum, carbon accounting basics, and recent student research 

Join us for: 
  • Slide Show of Natural Buildings by Our Members
  • Bale Heart Bar/Networking/Socializing
  • Fun-raising Raffle
  • Delicious Meals

Register for the April 2020 Conference Now!

Contact us for 2020 Conference Sponsorship Opportunities


Annual Natural Homes Tour

The annual natural homes tour took place on Sunday Sept 29th - with 29 homes across Ontario participating. It was a fantastic opportunity to view a wide range of natural homes that featured straw bale, rammed earth, hempcrete and many more natural building methods, as well as alternative energy and heating systems and much more! The annual tour typically takes place the last Sunday of September - keep an eye on this site for a date for next year. 

A huge thanks to all the homeowners who voluntarily opened their homes to tour-goers and to all the people who took part in the tour. 

See a CTV news video clip of one of the homes on our 2019 tour.


Visit our Natural Building Gallery to see houses built out of straw, wood & earth!

A Natural Home Tours Thank You

Over the years, many homes and buildings have participated in our Natural Building Annual tour.

Many of the homes that have been featured were models of innovation and energy efficiency and featured living roofs, natural clay wall finishes, rainwater catchment systems, grey water systems, composting toilets, while others incorporated solar and wind electrical systems, high efficiency wood burning appliances, solar domestic hot water systems, as well as a variety of other interesting green technologies.

The Ontario Natural Building Coalition would like to thank all the volunteer homeowners who have over the years graciously opened their doors and welcomed tour-goers. The annual tour would not be possible without them!

© Ontario Natural Building Coalition
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